#include <stdio.h>
#include <ctype.h>
void convert_vowels_to_uppercase(char*str){
    for(int i=0;str[i];i++){
        char c=str[i];
        if(isalpha(c)){
            if(c=='a' || c=='e' || c=='i' || c=='o' || c=='u'
               c=='A' || c=='E' || c=='I' || c=='O' || c=='U'){
                str[i]=toupper(c);
            }
        }else{
            printf("Invalid input\n");
            return;
        }
    }
    printf("%s\n",str);
}
int main(){
    char str[101];
    scanf("%100s",str);
    convert_vowels_to_uppercase(str);
    return 0;
}